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How do you patch or seal an exposed rebar post tension cable in foundation slab?
Rebar and Post Tension cable (PT) are two entirely different items. Rebar is the static steel bars placed in the concrete while the PT are high tensile strength cables that were placed in concrete than stressed under hydraulic jacking to a tension generally around 2500 to 3500 psi. As a result, the situations for repair are different. The exposed rebar can be cleaned and patched through approved methods. However the PT should be looked at by a professional as it is an integral part of the structure and, as mentioned before, is under tensioned stress. If the exposed rebar is in a PT slab, caution should be used and a professional consulted as well, due the rebar being integrated with the PT.
What difference suspended concrete slab between unsuspended concrete slab?
Supended slab are slab not sit on the ground directlySuspended slab is a slab supported by beams.
How much type of roof slab?
1. one way slab 2. two way slab 3. flat slab 4. roof slab
What is the meaning of the solid slab?
A solid slab is a reinforced concrete slab which is supported by beams or walls..
If you have a slab has a short length of 3m and a long one of 6m do you take as one way slab or tow way slab?
when the length of the slab is more or equal to twice the breadth hence it has to be one way slab.
What anchor should you use with a concrete block wall?
bent and tied metal rebar for the slab-to-wall connection at all filled cells bent metal straps embedded into the lintel to connect roof to wall
What is the maximum aggregate size allowed in concrete slab that is 6inches thick?
2" based strictly on the slab thickness. However, it may be governed by form spacing, rebar spacing or rebar clearance to the forms.
Do you need to use wire mesh or rebar if im having fibermesh mixed with my concrete?
You still need rebar, unless you are filling a drop in an existing slab that already has steel in it.
How many pounds of rebar are in a typical concrete slab on grade?
There is no way to answer without a design and the square footage.
Lenghts and spaces of a rebar in a slab?
varies depending on load to be put on slab, local codes, lots of variables. Check with bldg. dept., better yet a structural engineer.
How stirrups are fixed in Reinforcement for concrete slab?
I assume they would be tied using tie-wire to the rest of the rebar cage.
What is the meaning of waist slab?
Waist slab is used in case of stairs. The rebars are bent at some angles on which steps are built.
Is rebar a requirement in a 8 by 8 slab?
No. There are plenty of complete driveways with no steel. Assuming you are refering to flatwork and not an actual building foundation.
Why do all concrete slabs need rebar?
When the slab is loaded and force applied to it, the top of the slab directly under the load will be put in compression. However at the bottom of the slab. the concrete will pull itself in tension. Put the ends of your fingers together than flex your wrist up. You will feel the pressure at the top of your fingertips and you will see a gap open at the bottom. That is what is happening in a slab. Concrete is strong in compression, poor in tension. Rebar, or steel, is the opposite. By combining the two, you develop a product that is superior and complimentary to the strengths and weaknesses of the individual materials.
How do you patch or seal an exposed rebar post tension cable in foundation slab?
Rebar and Post Tension cable (PT) are two entirely different items. Rebar is the static steel bars placed in the concrete while the PT are high tensile strength cables that were placed in concrete than stressed under hydraulic jacking to a tension generally around 2500 to 3500 psi. As a result, the situations for repair are different. The exposed rebar can be cleaned and patched through approved methods. However the PT should be looked at by a professional as it is an integral part of the structure and, as mentioned before, is under tensioned stress. If the exposed rebar is in a PT slab, caution should be used and a professional consulted as well, due the rebar being integrated with the PT.
Is rebar flexible?
if by flexible you mean bendable the answer is yes, it can be bent at quite sharp radii, but if you cut a quarter of the way in it will snap at that point.
How thick should you pour your cement slab?
As a guideline, 4 inches thick, but it would depend on what is going to be sitting on top of it. You may need thicker and/or to reinforce it with rebar.
